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CHANGES.txt
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HBase Change Log
Release 0.94.8 - 5/22/2013
Sub-task
[HBASE-8381] - TestTableInputFormatScan on Hadoop 2 fails because YARN kills our applications
[HBASE-8399] - TestTableInputFormatScan2#testScanFromConfiguration fails on hadoop2 profile
Bug
[HBASE-7122] - Proper warning message when opening a log file with no entries (idle cluster)
[HBASE-7210] - Backport HBASE-6059 to 0.94
[HBASE-7921] - TestHFileBlock.testGzipCompression should ignore the block checksum
[HBASE-8282] - User triggered flushes does not allow compaction to get triggered even if compaction criteria is met
[HBASE-8327] - Consolidate class loaders
[HBASE-8354] - Backport HBASE-7878 'recoverFileLease does not check return value of recoverLease' to 0.94
[HBASE-8355] - BaseRegionObserver#pre(Compact|Flush|Store)ScannerOpen returns null
[HBASE-8377] - IntegrationTestBigLinkedList calculates wrap for linked list size incorrectly
[HBASE-8379] - bin/graceful_stop.sh does not return the balancer to original state
[HBASE-8385] - [SNAPSHOTS]: Restore fails to restore snapshot of a deleted table
[HBASE-8389] - HBASE-8354 forces Namenode into loop with lease recovery requests
[HBASE-8413] - Snapshot verify region will always fail if the HFile has been archived
[HBASE-8451] - MetricsMBeanBase has concurrency issues in init
[HBASE-8455] - Update ExportSnapshot to reflect changes in HBASE-7419
[HBASE-8464] - FastDiffEncoder - valueOffset calculation is incorrect
[HBASE-8483] - HConnectionManager can leak ZooKeeper connections when using deleteStaleConnection
[HBASE-8493] - Backport HBASE-8422, 'Master won't go down', to 0.94
[HBASE-8503] - Backport hbase-8483 "HConnectionManager can leak ZooKeeper connections when using deleteStaleConnection" to 0.94
[HBASE-8505] - References to split daughters should not be deleted separately from parent META entry
[HBASE-8509] - ZKUtil#createWithParents won't set data during znode creation when parent folder doesn't exit
[HBASE-8513] - [0.94] Fix class files with CRLF endings
[HBASE-8516] - FSUtils.create() fail with ViewFS
[HBASE-8525] - Use sleep multilier when choosing sinks in ReplicationSource
[HBASE-8530] - Refine error message from ExportSnapshot when there is leftover snapshot in target cluster
[HBASE-8538] - HBaseAdmin#isTableEnabled() should check table existence before checking zk state.
[HBASE-8539] - Double(or tripple ...) ZooKeeper listeners of the same type when Master recovers from ZK SessionExpiredException
[HBASE-8540] - SnapshotFileCache logs too many times if snapshot dir doesn't exists
[HBASE-8547] - Fix java.lang.RuntimeException: Cached an already cached block
[HBASE-8550] - 0.94 ChaosMonkey grep for master is too broad
[HBASE-8563] - Double count of read requests for Gets
[HBASE-8588] - [Documentation]: Add information about adding REST and Thrift API kerberos principals to HBase ACL table
Improvement
[HBASE-5930] - Limits the amount of time an edit can live in the memstore.
[HBASE-6870] - HTable#coprocessorExec always scan the whole table
[HBASE-8345] - Add all available resources in o.a.h.h.rest.RootResource and VersionResource to o.a.h.h.rest.client.RemoteAdmin
[HBASE-8350] - enable ChaosMonkey to run commands as different users
[HBASE-8367] - LoadIncrementalHFiles does not return an error code nor throw Exception when failures occur due to timeouts
[HBASE-8383] - Support lib/*jar inside coprocessor jar
[HBASE-8405] - Add more custom options to how ClusterManager runs commands
[HBASE-8446] - Allow parallel snapshot of different tables
New Feature
[HBASE-7965] - Port table locking to 0.94 (HBASE-7305, HBASE-7546, HBASE-7933)
[HBASE-8415] - DisabledRegionSplitPolicy
Task
[HBASE-8574] - Add how to rename a table in the docbook
Test
[HBASE-8508] - improve unit-test coverage of package org.apache.hadoop.hbase.metrics.file
Release 0.94.7 - 4/24/2013
Sub-task
[HBASE-7615] - Add metrics for snapshots
[HBASE-7801] - Allow a deferred sync option per Mutation.
[HBASE-8210] - Backport the LoadTest portions of HBASE-7383
[HBASE-8316] - JoinedHeap for non essential column families should reseek instead of seek
Bug
[HBASE-7401] - Remove warning message about running 'hbase migrate'
[HBASE-7658] - grant with an empty string as permission should throw an exception
[HBASE-7817] - Suggested JDWP debug options in hbase-env.sh are wrong
[HBASE-7824] - Improve master start up time when there is log splitting work
[HBASE-7925] - Back port HBASE-6881 into 0.94
[HBASE-7961] - truncate on disabled table should throw TableNotEnabledException.
[HBASE-8014] - Backport HBASE-6915 to 0.94.
[HBASE-8030] - znode path of online region servers is hard coded in rolling_restart.sh
[HBASE-8044] - split/flush/compact/major_compact from hbase shell does not work for region key with \x format
[HBASE-8081] - Backport HBASE-7213 (separate hlog for meta tables) to 0.94
[HBASE-8092] - bulk assignment in 0.94 doesn't handle ZK errors very well
[HBASE-8096] - [replication] NPE while replicating a log that is acquiring a new block from HDFS
[HBASE-8118] - TestTablePermission depends on the execution order
[HBASE-8125] - HBASE-7435 breaks BuiltInGzipDecompressor on Hadoop < 1.0.x
[HBASE-8127] - Region of a disabling or disabled table could be stuck in transition state when RS dies during Master initialization
[HBASE-8128] - HTable#put improvements
[HBASE-8131] - Create table handler needs to handle failure cases.
[HBASE-8142] - Sporadic TestZKProcedureControllers failures on trunk
[HBASE-8146] - IntegrationTestBigLinkedList does not work on distributed setup
[HBASE-8150] - server should not produce RAITE for already-opening region in 0.94 (because master retry logic handles this case poorly)
[HBASE-8151] - Decode memstoreTS in HFileReaderV2 only when necessary
[HBASE-8158] - Backport HBASE-8140 "TableMapReduceUtils#addDependencyJar fails when nested inside another MR job"
[HBASE-8160] - HMaster#move doesn't check if master initialized
[HBASE-8166] - Avoid writing the memstoreTS into HFiles when possible
[HBASE-8169] - TestMasterFailover#testMasterFailoverWithMockedRITOnDeadRS may fail due to regions randomly assigned to a RS
[HBASE-8170] - HbaseAdmin.createTable cannot handle creating three regions
[HBASE-8176] - Backport HBASE-5335 "Dynamic Schema Configurations" to 0.94
[HBASE-8179] - JSON formatting for cluster status is sort of broken
[HBASE-8188] - Avoid unnecessary row compare in StoreScanner
[HBASE-8192] - Logic errror causes infinite loop in HRegion.bulkLoadHFiles(List)
[HBASE-8207] - Replication could have data loss when machine name contains hyphen "-"
[HBASE-8208] - In some situations data is not replicated to slaves when deferredLogSync is enabled
[HBASE-8211] - Support for NN HA for 0.94
[HBASE-8212] - Introduce a new separator instead of hyphen('-') for renaming recovered queues' znodes
[HBASE-8213] - global authorization may lose efficacy
[HBASE-8215] - Removing existing .regioninfo in writeRegioninfoOnFilesystem
[HBASE-8222] - User class should implement equals() and hashCode()
[HBASE-8225] - [replication] minor code bug when registering ReplicationLogCleaner
[HBASE-8226] - HBaseTestingUtility#waitUntilAllRegionsAssigned won't return if it counts "too many" regions
[HBASE-8229] - Replication code logs like crazy if a target table cannot be found.
[HBASE-8230] - Possible NPE on regionserver abort if replication service has not been started
[HBASE-8231] - delete tests in table_tests.rb(TestShell) always running on empty table.
[HBASE-8232] - TestAccessController occasionally fails with IndexOutOfBoundsException
[HBASE-8246] - Backport HBASE-6318 to 0.94 where SplitLogWorker exits due to ConcurrentModificationException
[HBASE-8259] - Snapshot backport in 0.94.6 breaks rolling restarts
[HBASE-8266] - Master cannot start if TableNotFoundException is thrown while partial table recovery
[HBASE-8270] - Backport HBASE-8097 'MetaServerShutdownHandler may potentially keep bumping up DeadServer.numProcessing' to 0.94
[HBASE-8274] - Backport to 94: HBASE-7488 Implement HConnectionManager.locateRegions which is currently returning null
[HBASE-8276] - Backport hbase-6738 to 0.94 "Too aggressive task resubmission from the distributed log manager"
[HBASE-8285] - HBaseClient never recovers for single HTable.get() calls with no retries when regions move
[HBASE-8288] - HBaseFileSystem: Refactoring and correct semantics for createPath methods
[HBASE-8303] - Increse the test timeout to 60s when they are less than 20s
[HBASE-8313] - Add Bloom filter testing for HFileOutputFormat
[HBASE-8326] - mapreduce.TestTableInputFormatScan times out frequently
[HBASE-8352] - Rename '.snapshot' directory
[HBASE-8427] - Apache Rat is incorrectly excluding test source files
Improvement
[HBASE-7410] - [snapshots] add snapshot/clone/restore/export docs to ref guide
[HBASE-7599] - Port HBASE-6066 (low hanging read path improvements) to 0.94
[HBASE-8148] - Allow IPC to bind on a specific address
[HBASE-8152] - Avoid creating empty reference file when splitkey is outside the key range of a store file
[HBASE-8174] - Backport HBASE-8161(setting blocking file count on table level doesn't work) to 0.94
[HBASE-8198] - Backport HBASE-8063(Filter HFiles based on first/last key) into 0.94
[HBASE-8199] - Eliminate exception for ExportSnapshot against the null table snapshot (with no data in)
[HBASE-8209] - Improve LoadTest extensibility
New Feature
[HBASE-1936] - ClassLoader that loads from hdfs; useful adding filters to classpath without having to restart services
[HBASE-7415] - [snapshots] Add task information to snapshot operation
Task
[HBASE-7929] - Reapply hbase-7507 "Make memstore flush be able to retry after exception" to 0.94 branch.
Test
[HBASE-8106] - Test to check replication log znodes move is done correctly
[HBASE-8260] - create generic integration test for trunk and 94 that is more deterministic, can be run for longer and is less aggressive
Release 0.94.6.1 - 4/13/2013
Bug
[HBASE-8259] - Snapshot backport in 0.94.6 breaks rolling restarts
Release 0.94.6 - 3/14/2013
Sub-task
[HBASE-7944] - Replication leaks file reader resource & not reset currentNbOperations
Bug
[HBASE-6132] - ColumnCountGetFilter & PageFilter not working with FilterList
[HBASE-6347] - -ROOT- and .META. are stale in table.jsp if they moved
[HBASE-6748] - Endless recursive of deleteNode happened in SplitLogManager#DeleteAsyncCallback
[HBASE-7111] - hbase zkcli will not start if the zookeeper server chosen to connect to is unavailable
[HBASE-7153] - print gc option in hbase-env.sh affects hbase zkcli
[HBASE-7507] - Make memstore flush be able to retry after exception
[HBASE-7521] - fix HBASE-6060 (regions stuck in opening state) in 0.94
[HBASE-7624] - Backport HBASE-5359 and HBASE-7596 to 0.94
[HBASE-7671] - Flushing memstore again after last failure could cause data loss
[HBASE-7700] - TestColumnSeeking is mathematically bound to fail
[HBASE-7723] - Remove NameNode URI from ZK splitlogs
[HBASE-7725] - Add ability to create custom compaction request
[HBASE-7761] - MemStore.USEMSLAB_DEFAULT is false, hbase-default.xml says it's true
[HBASE-7763] - Compactions not sorting based on size anymore.
[HBASE-7768] - zkcluster in local mode not seeing configurations in hbase-{site|default}.xml
[HBASE-7777] - HBCK check for lingering split parents should check for child regions
[HBASE-7813] - Bug in BulkDeleteEndpoint kills entire rows on COLUMN/VERSION Deletes
[HBASE-7814] - Port HBASE-6963 'unable to run hbck on a secure cluster' to 0.94
[HBASE-7829] - zookeeper kerberos conf keytab and principal parameters interchanged
[HBASE-7832] - Use User.getShortName() in FSUtils
[HBASE-7833] - 0.94 does not compile with Hadoop-0.20.205 and 0.22.0
[HBASE-7851] - Include the guava classes as a dependency for jobs using mapreduce.TableMapReduceUtil
[HBASE-7866] - TestSplitTransactionOnCluster.testSplitBeforeSettingSplittingInZK failed 3 times in a row
[HBASE-7867] - setPreallocSize is different with COMMENT in setupTestEnv in MiniZooKeeperCluster.java
[HBASE-7869] - Provide way to not start LogSyncer thread
[HBASE-7876] - Got exception when manually triggers a split on an empty region
[HBASE-7883] - Update memstore size when removing the entries in append operation
[HBASE-7884] - ByteBloomFilter's performance can be improved by avoiding multiplication when generating hash
[HBASE-7913] - Secure Rest server should login before getting an instance of Rest servlet
[HBASE-7914] - Port the fix of HBASE-6748 into 0.94 branch
[HBASE-7915] - Secure ThriftServer needs to login before calling HBaseHandler
[HBASE-7916] - HMaster uses wrong InetSocketAddress parameter to throw exception
[HBASE-7919] - Wrong key is used in ServerManager#getServerConnection() to retrieve from Map serverConnections
[HBASE-7920] - Move isFamilyEssential(byte[] name) out of Filter interface in 0.94
[HBASE-7945] - Remove flaky TestCatalogTrackerOnCluster
[HBASE-7986] - [REST] Make HTablePool size configurable
[HBASE-7991] - Backport HBASE-6479 'HFileReaderV1 caching the same parent META block could cause server abort when splitting' to 0.94
[HBASE-8007] - Adopt TestLoadAndVerify from BigTop
[HBASE-8019] - Port HBASE-7779 '[snapshot 130201 merge] Fix TestMultiParallel' to 0.94
[HBASE-8025] - zkcli fails when SERVER_GC_OPTS is enabled
[HBASE-8040] - Race condition in AM after HBASE-7521 (only 0.94)
[HBASE-8055] - Null check missing in StoreFile.Reader.getMaxTimestamp()
[HBASE-8061] - Missing test from TestFlushSnapshotFromClient in 0.94
[HBASE-8069] - TestHLog is dependent on the execution order
[HBASE-8085] - Backport the fix for Bytes.toStringBinary() into 94 (HBASE-6991)
[HBASE-8099] - ReplicationZookeeper.copyQueuesFromRSUsingMulti should not return any queues if it failed to execute.
[HBASE-8103] - Fix pom so 0.94 can generate site reports
Improvement
[HBASE-7818] - add region level metrics readReqeustCount and writeRequestCount
[HBASE-7827] - Improve the speed of Hbase Thirft Batch mutation for deletes
[HBASE-8031] - Adopt goraci as an Integration test
New Feature
[HBASE-4210] - Allow coprocessor to interact with batches per region sent from a client
[HBASE-7360] - Snapshot 0.94 Backport
Task
[HBASE-8088] - Versioning site: part one, put stake in the ground for 0.94 by copying current versions of book and site
[HBASE-8090] - Versioning site; part two, publish 0.94 site and add link from main site
Release 0.94.5 - 2/7/2013
Sub-task
[HBASE-2611] - Handle RS that fails while processing the failure of another one
[HBASE-7626] - Backport portions of HBASE-7460 to 0.94
[HBASE-7687] - TestCatalogTracker.testServerNotRunningIOException fails occasionally
[HBASE-7738] - REST server should publish metrics that are available via HTTP
Bug
[HBASE-5458] - Thread safety issues with Compression.Algorithm.GZ and CompressionTest
[HBASE-6513] - Test errors when building on MacOS
[HBASE-6824] - Introduce ${hbase.local.dir} and save coprocessor jars there
[HBASE-7034] - Bad version, failed OPENING to OPENED but master thinks it is open anyways
[HBASE-7293] - [replication] Remove dead sinks from ReplicationSource.currentPeers and pick new ones
[HBASE-7423] - HFileArchiver should not use the configuration from the Filesystem
[HBASE-7468] - TestSplitTransactionOnCluster hangs frequently
[HBASE-7476] - HBase shell count command doesn't escape binary output
[HBASE-7497] - TestDistributedLogSplitting.testDelayedDeleteOnFailure times out occasionally
[HBASE-7498] - Make REST server thread pool size configurable
[HBASE-7499] - TestScannerTimeout timeout is too aggressive.
[HBASE-7502] - TestScannerTimeout fails on snapshot branch
[HBASE-7504] - -ROOT- may be offline forever after FullGC of RS
[HBASE-7505] - Server will hang when stopping cluster, caused by waiting for split threads
[HBASE-7506] - Judgment of carrying ROOT/META will become wrong when expiring server
[HBASE-7513] - HDFSBlocksDistribution shouldn't send NPEs when something goes wrong
[HBASE-7515] - Store.loadStoreFiles should close opened files if there's an exception
[HBASE-7524] - hbase-policy.xml is improperly set thus all rules in it can be by-passed
[HBASE-7530] - [replication] Work around HDFS-4380 else we get NPEs
[HBASE-7531] - [replication] NPE in SequenceFileLogReader because ReplicationSource doesn't nullify the reader
[HBASE-7534] - [replication] TestReplication.queueFailover can fail because HBaseTestingUtility.createMultiRegions is dangerous
[HBASE-7545] - [replication] Break out TestReplication into manageable classes
[HBASE-7549] - Make HTableInterface#batch() javadoc proper
[HBASE-7550] - Synchronization problem in AssignmentManager
[HBASE-7551] - nodeChildrenChange event may happen after the transition to RS_ZK_REGION_SPLITTING in SplitTransaction causing the SPLIT event to be missed in the master side.
[HBASE-7562] - ZKUtil: missing "else condition" in multi processing
[HBASE-7575] - FSUtils#getTableStoreFilePathMap should all ignore non-table folders
[HBASE-7578] - TestCatalogTracker hangs occasionally
[HBASE-7581] - TestAccessController depends on the execution order
[HBASE-7584] - Improve TestAccessController.testAppend
[HBASE-7587] - Fix two findbugs warning in RowResource
[HBASE-7592] - HConnectionManager.getHTableDescriptor() compares too much
[HBASE-7602] - TestFromClientSide.testPoolBehavior is incorrect
[HBASE-7617] - TestHRegionOnCluster.testDataCorrectnessReplayingRecoveredEdits still fails occasionally.
[HBASE-7628] - Port HBASE-6509 fast-forwarding FuzzyRowFilter to 0.94
[HBASE-7643] - HFileArchiver.resolveAndArchive() race condition may lead to snapshot data loss
[HBASE-7644] - Port HBASE-4802 'Disable show table metrics in bulk loader' to 0.94
[HBASE-7646] - Make forkedProcessTimeoutInSeconds configurable
[HBASE-7647] - 0.94 hfiles v2.1 are not backwards compatible with HFilev2.0
[HBASE-7648] - TestAcidGuarantees.testMixedAtomicity hangs sometimes
[HBASE-7654] - Add List<String> getCoprocessors() to HTableDescriptor
[HBASE-7669] - ROOT region wouldn't be handled by PRI-IPC-Handler
[HBASE-7681] - Address some recent random test failures
[HBASE-7684] - NullPointerException in SecureClient when Call is cleaned up due to RPC timeout
[HBASE-7685] - Closing socket connection can't be removed from SecureClient
[HBASE-7693] - Hostname returned by TableInputFormatBase.reverseDNS contains trailing period
[HBASE-7694] - Secure HBase should use replication call queue
[HBASE-7698] - race between RS shutdown thread and openregionhandler causes region to get stuck
[HBASE-7702] - Adding filtering to Import jobs
[HBASE-7715] - FSUtils#waitOnSafeMode can incorrectly loop on standby NN
[HBASE-7717] - Wait until regions are assigned in TestSplitTransactionOnCluster
[HBASE-7728] - deadlock occurs between hlog roller and hlog syncer
[HBASE-7729] - TestCatalogTrackerOnCluster.testbadOriginalRootLocation fails occasionally
[HBASE-7730] - HBaseAdmin#synchronousBalanceSwitch is not compatible with 0.92
[HBASE-7731] - Append/Increment methods in HRegion don't check whether the table is readonly or not
[HBASE-7740] - Recheck matching row for joined scanners
[HBASE-7771] - Secure HBase Client in MR job causes tasks to wait forever
[HBASE-7772] - clusterId is not set in conf properly if only TableMapReduceUtil.initCredentials() is called
[HBASE-7776] - Use ErrorReporter/Log instead of System.out in hbck
[HBASE-7785] - rolling-restart.sh script unable to check expiration of master znode
[HBASE-7793] - Port HBASE-5564 Bulkload is discarding duplicate records to 0.94
Improvement
[HBASE-3996] - Support multiple tables and scanners as input to the mapper in map/reduce jobs
[HBASE-5416] - Improve performance of scans with some kind of filters.
[HBASE-5498] - Secure Bulk Load
[HBASE-5664] - CP hooks in Scan flow for fast forward when filter filters out a row
[HBASE-7441] - Make ClusterManager in IntegrationTestingUtility pluggable
[HBASE-7540] - Make znode dump to print a dump of replication znodes
[HBASE-7561] - Display the total number of regions for a given table on the master webUI
[HBASE-7757] - Add web UI to REST server and Thrift server
New Feature
[HBASE-6669] - Add BigDecimalColumnInterpreter for doing aggregations using AggregationClient
[HBASE-7748] - Add DelimitedKeyPrefixRegionSplitPolicy
Wish
[HBASE-7705] - Make the method getCurrentPoolSize of HTablePool public
Release 0.94.4 - 1/2/2013
Sub-task
[HBASE-3776] - Add Bloom Filter Support to HFileOutputFormat
[HBASE-6206] - Large tests fail with jdk1.7
[HBASE-7009] - Port HBaseCluster interface/tests to 0.94
[HBASE-7042] - Master Coprocessor Endpoint
[HBASE-7282] - Backport Compaction Tool to 0.94
[HBASE-7331] - Add access control for region open and close, row locking, and stopping the regionserver
[HBASE-7336] - HFileBlock.readAtOffset does not work well with multiple threads
[HBASE-7371] - Blocksize in TestHFileBlock is unintentionally small
[HBASE-7399] - Health check chore for HMaster
[HBASE-7406] - Example health checker script
[HBASE-7431] - TestSplitTransactionOnCluster tests still flaky
[HBASE-7438] - TestSplitTransactionOnCluster has too many infinite loops
Bug
[HBASE-6175] - TestFSUtils flaky on hdfs getFileStatus method
[HBASE-6317] - Master clean start up and Partially enabled tables make region assignment inconsistent.
[HBASE-6327] - HLog can be null when create table
[HBASE-6423] - Writes should not block reads on blocking updates to memstores
[HBASE-7091] - support custom GC options in hbase-env.sh
[HBASE-7158] - Allow CopyTable to identify the source cluster (for replication scenarios)
[HBASE-7165] - TestSplitLogManager.testUnassignedTimeout is flaky
[HBASE-7166] - TestSplitTransactionOnCluster tests are flaky
[HBASE-7172] - TestSplitLogManager.testVanishingTaskZNode() fails when run individually and is flaky
[HBASE-7177] - TestZooKeeperScanPolicyObserver.testScanPolicyObserver is flaky
[HBASE-7180] - RegionScannerImpl.next() is inefficient.
[HBASE-7205] - Coprocessor classloader is replicated for all regions in the HRegionServer
[HBASE-7214] - CleanerChore logs too much, so much so it obscures all else that is going on
[HBASE-7230] - port HBASE-7109 integration tests on cluster are not getting picked up from distribution to 0.94
[HBASE-7235] - TestMasterObserver is flaky
[HBASE-7251] - Avoid flood logs during client disconnect during batch get operation
[HBASE-7252] - TestSizeBasedThrottler fails occasionally
[HBASE-7259] - Deadlock in HBaseClient when KeeperException occured
[HBASE-7260] - Upgrade hadoop 1 dependency to hadoop 1.1.1
[HBASE-7273] - Upgrade zookeeper dependency to 3.4.5 for 0.94
[HBASE-7279] - Avoid copying the rowkey in RegionScanner, StoreScanner, and ScanQueryMatcher
[HBASE-7300] - HbckTestingUtil needs to keep a static executor to lower the number of threads used
[HBASE-7301] - Force ipv4 for unit tests
[HBASE-7307] - MetaReader.tableExists should not return false if the specified table regions has been split
[HBASE-7338] - Fix flaky condition for org.apache.hadoop.hbase.TestRegionRebalancing.testRebalanceOnRegionServerNumberChange
[HBASE-7342] - Split operation without split key incorrectly finds the middle key in off-by-one error
[HBASE-7343] - Fix flaky condition for TestDrainingServer
[HBASE-7357] - HBaseClient and HBaseServer should use hbase.security.authentication when negotiating authentication
[HBASE-7376] - Acquiring readLock does not apply timeout in HRegion#flushcache
[HBASE-7398] - [0.94 UNIT TESTS] TestAssignmentManager fails frequently on CentOS 5
[HBASE-7412] - Fix how HTableDescriptor handles default max file size and flush size
[HBASE-7417] - TestReplication is flaky
[HBASE-7421] - TestHFileCleaner->testHFileCleaning has an aggressive timeout
[HBASE-7422] - MasterFS doesn't set configuration for internal FileSystem
[HBASE-7432] - TestHBaseFsck prevents testsuite from finishing
[HBASE-7435] - BuiltInGzipDecompressor is only released during full GC
[HBASE-7440] - ReplicationZookeeper#addPeer is racy
[HBASE-7442] - HBase remote CopyTable not working when security enabled
[HBASE-7455] - Increase timeouts in TestReplication and TestSplitLogWorker
[HBASE-7464] - [REST] Sending HTML for errors is unhelpful
[HBASE-7466] - Fix junit dependency typo in 0.94
[HBASE-7467] - CleanerChore checkAndDeleteDirectory not deleting empty directories
[HBASE-7483] - TestHRegionOnCluster and TestSplitTransactionOnCluster are racy with HBaseAdmin.move()
[HBASE-7485] - TestSplitLogManager is still flaky on windows
Improvement
[HBASE-4791] - Allow Secure Zookeeper JAAS configuration to be programmatically set (rather than only by reading JAAS configuration file)
[HBASE-5616] - Make compaction code standalone
[HBASE-5693] - When creating a region, the master initializes it and creates a memstore within the master server
[HBASE-5778] - Fix HLog compression's incompatibilities
[HBASE-5888] - Clover profile in build
[HBASE-6585] - Audit log messages should contain info about the higher level operation being executed
[HBASE-6775] - Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[HBASE-7190] - Add an option to hbck to check only meta and assignment
[HBASE-7197] - Add multi get to RemoteHTable
[HBASE-7199] - hbck should check lingering reference hfile and have option to sideline them automatically
[HBASE-7204] - Make hbck ErrorReporter pluggable
[HBASE-7231] - port HBASE-7200 create integration test for balancing regions and killing region servers to 0.94
[HBASE-7249] - add test name filter to IntegrationTestsDriver
[HBASE-7328] - IntegrationTestRebalanceAndKillServersTargeted supercedes IntegrationTestRebalanceAndKillServers, remove
[HBASE-7351] - Periodic health check chore
[HBASE-7359] - [REST] 'accessToken' in RemoteHTable is vestigial
[HBASE-7374] - Expose master table operations for coprocessors by way of MasterServices
[HBASE-7377] - Clean up TestHBase7051
[HBASE-7381] - Lightweight data transfer for Class Result
[HBASE-7469] - [REST] Share a HBaseAdmin instance
[HBASE-7472] - [REST] Support MIME type application/protobuf
Task
[HBASE-5258] - Move coprocessors set out of RegionLoad
[HBASE-7170] - [0.94 branch] Allow HConnectionImplementation to reconnect to master multiple times
[HBASE-7283] - Backport HBASE-6564 + HBASE-7202 to 0.94
[HBASE-7341] - Deprecate RowLocks in 0.94
Release 0.94.3 - 11/12/2012
Sub-task
[HBASE-4913] - Per-CF compaction Via the Shell
[HBASE-6305] - TestLocalHBaseCluster hangs with hadoop 2.0/0.23 builds.
[HBASE-6925] - Change socket write size from 8K to 64K for HBaseServer
[HBASE-6996] - HRegion.mutateRowsWithLocks should call checkResources/checkReadOnly
[HBASE-7076] - Add test that increment/append properly integrate with MVCC
[HBASE-7077] - Test for: CheckAndPut should properly read MVCC
[HBASE-7078] - Add a test that append is atomic
Bug
[HBASE-6389] - Modify the conditions to ensure that Master waits for sufficient number of Region Servers before starting region assignments
[HBASE-6583] - Enhance Hbase load test tool to automatically create column families if not present
[HBASE-6665] - ROOT region should not be splitted even with META row as explicit split key
[HBASE-6700] - [replication] empty znodes created during queue failovers aren't deleted
[HBASE-6728] - [89-fb] prevent OOM possibility due to per connection responseQueue being unbounded
[HBASE-6733] - [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-2]
[HBASE-6796] - Backport HBASE-5547, Don't delete HFiles in backup mode.
[HBASE-6843] - loading lzo error when using coprocessor
[HBASE-6846] - BitComparator bug - ArrayIndexOutOfBoundsException
[HBASE-6904] - In the HBase shell, an error is thrown that states replication-related znodes already exist
[HBASE-6958] - TestAssignmentManager sometimes fails
[HBASE-6974] - Metric for blocked updates
[HBASE-6978] - Minor typo in ReplicationSource SocketTimeoutException error handling
[HBASE-7017] - Backport "[replication] The replication-executor should make sure the file that it is replicating is closed before declaring success on that file" to 0.94
[HBASE-7018] - Fix and Improve TableDescriptor caching for bulk assignment
[HBASE-7021] - Default to Hadoop 1.0.4 in 0.94 and add Hadoop 1.1 profile
[HBASE-7037] - ReplicationPeer logs at WARN level aborting server instead of at FATAL
[HBASE-7048] - Regionsplitter requires the hadoop config path to be in hbase classpath
[HBASE-7051] - CheckAndPut should properly read MVCC
[HBASE-7060] - Region load balancing by table does not handle the case where a table's region count is lower than the number of the RS in the cluster
[HBASE-7069] - HTable.batch does not have to be synchronized
[HBASE-7086] - Enhance ResourceChecker to log stack trace for potentially hanging threads
[HBASE-7095] - Cannot set 'lenAsVal' for KeyOnlyFilter from shell
[HBASE-7103] - Need to fail split if SPLIT znode is deleted even before the split is completed.
[HBASE-7143] - TestMetaMigrationRemovingHTD fails when used with Hadoop 0.23/2.x
Improvement
[HBASE-5257] - Allow INCLUDE_AND_NEXT_COL in filters and use it in ColumnPaginationFilter
[HBASE-5314] - Gracefully rolling restart region servers in rolling-restart.sh
[HBASE-5898] - Consider double-checked locking for block cache lock
[HBASE-6852] - SchemaMetrics.updateOnCacheHit costs too much while full scanning a table with all of its fields
[HBASE-6942] - Endpoint implementation for bulk deletion of data
[HBASE-6951] - Allow the master info server to be started in a read only mode.
[HBASE-7073] - OperationMetrics needs to cache the value of hbase.metrics.exposeOperationTimes
[HBASE-7089] - Allow filter to be specified for Get from HBase shell
[HBASE-7097] - Log message in SecureServer.class uses wrong class name
[HBASE-7151] - Better log message for Per-CF compactions
Task
[HBASE-6032] - Port HFileBlockIndex improvement from HBASE-5987
[HBASE-7016] - port HBASE-6518 'Bytes.toBytesBinary() incorrect trailing backslash escape' to 0.94
[HBASE-7020] - Backport HBASE-6336 Split point should not be equal to start row or end row
[HBASE-7038] - Port HBASE-5970 Improve the AssignmentManager#updateTimer and speed up handling opened event to 0.94
[HBASE-7040] - Port HBASE-5867 Improve Compaction Throttle Default to 0.94
[HBASE-7053] - port blockcache configurability (part of HBASE-6312, and HBASE-7033) to 0.94
[HBASE-7087] - Add to NOTICE.txt a note on jamon being MPL
Test
[HBASE-5984] - TestLogRolling.testLogRollOnPipelineRestart failed with HADOOP 2.0.0
[HBASE-7142] - TestSplitLogManager#testDeadWorker may fail because of hard limit on the TimeoutMonitor's timeout period
Release 0.94.2 - 10/08/2012
Sub-task
[HBASE-6257] - Avoid unnecessary flush & compact on Meta in admin.rb.
[HBASE-6496] - Example ZK based scan policy
[HBASE-6792] - Remove interface audience annotations in 0.94/0.92 introduced by HBASE-6516
Bug
[HBASE-4565] - Maven HBase build broken on cygwin with copynativelib.sh call.
[HBASE-5292] - getsize per-CF metric incorrectly counts compaction related reads as well
[HBASE-5549] - Master can fail if ZooKeeper session expires
[HBASE-5997] - Fix concerns raised in HBASE-5922 related to HalfStoreFileReader
[HBASE-6165] - Replication can overrun .META. scans on cluster re-start
[HBASE-6211] - Put latencies in jmx
[HBASE-6263] - Use default mode for HBase Thrift gateway if not specified
[HBASE-6268] - Can't enable a table on a 0.94 cluster from a 0.92 client
[HBASE-6299] - RS starting region open while failing ack to HMaster.sendRegionOpen() causes inconsistency in HMaster's region state and a series of successive problems
[HBASE-6321] - ReplicationSource dies reading the peer's id
[HBASE-6340] - HBase RPC should allow protocol extension with common interfaces.
[HBASE-6359] - KeyValue may return incorrect values after readFields()
[HBASE-6364] - Powering down the server host holding the .META. table causes HBase Client to take excessively long to recover and connect to reassigned .META. table
[HBASE-6378] - the javadoc of setEnabledTable maybe not describe accurately
[HBASE-6432] - HRegionServer doesn't properly set clusterId in conf
[HBASE-6437] - Avoid admin.balance during master initialize
[HBASE-6438] - RegionAlreadyInTransitionException needs to give more info to avoid assignment inconsistencies
[HBASE-6447] - Common TestZooKeeper failures on jenkins: testMasterSessionExpired and testCreateSilentIsReallySilent
[HBASE-6450] - HBase startup should be with MALLOC_MAX_ARENA set
[HBASE-6460] - hbck "-repairHoles" usage inconsistent with "-fixHdfsOrphans"
[HBASE-6471] - Performance regression caused by HBASE-4054
[HBASE-6478] - TestClassLoading.testClassLoadingFromLibDirInJar occasionally fails
[HBASE-6488] - HBase wont run on IPv6 on OSes that use zone-indexes
[HBASE-6503] - HBase Shell Documentation For DROP Is Outdated
[HBASE-6504] - Adding GC details prevents HBase from starting in non-distributed mode
[HBASE-6512] - Incorrect OfflineMetaRepair log class name
[HBASE-6514] - unknown metrics type: org.apache.hadoop.hbase.metrics.histogram.MetricsHistogram
[HBASE-6516] - hbck cannot detect any IOException while ".tableinfo" file is missing
[HBASE-6520] - MSLab May cause the Bytes.toLong not work correctly for increment
[HBASE-6525] - bin/replication/copy_tables_desc.rb references non-existent class
[HBASE-6529] - With HFile v2, the region server will always perform an extra copy of source files
[HBASE-6537] - Race between balancer and disable table can lead to inconsistent cluster
[HBASE-6552] - TestAcidGuarantees system test should flush more aggressively
[HBASE-6561] - Gets/Puts with many columns send the RegionServer into an "endless" loop
[HBASE-6565] - Coprocessor exec result Map is not thread safe
[HBASE-6576] - HBaseAdmin.createTable should wait until the table is enabled
[HBASE-6579] - Unnecessary KV order check in StoreScanner
[HBASE-6587] - Region would be assigned twice in the case of all RS offline
[HBASE-6596] - Revert HBASE-5022; it undoes HBC.create
[HBASE-6602] - Region Server Dynamic Metrics can cause high cpu usage.
[HBASE-6603] - RegionMetricsStorage.incrNumericMetric is called too often
[HBASE-6608] - Fix for HBASE-6160, META entries from daughters can be deleted before parent entries, shouldn't compare HRegionInfo's
[HBASE-6615] - hbase.rs.evictblocksonclose seems to be ineffective
[HBASE-6616] - test failure in TestDelayedRpc#testTooManyDelayedRpcs
[HBASE-6621] - Reduce calls to Bytes.toInt
[HBASE-6623] - [replication] replication metrics value AgeOfLastShippedOp is not set correctly
[HBASE-6631] - TestHMasterRPCException in 0.92 failed twice on socket timeout
[HBASE-6632] - [0.92 UNIT TESTS] testCreateTableRPCTimeOut sets rpc timeout to 1500ms and leaves it (testHundredsOfTable fails w/ 1500ms timeout)
[HBASE-6638] - Move DaemonThreadFactory into Threads (0.94)
[HBASE-6641] - more message with DoNotRetryIOException in client
[HBASE-6647] - [performance regression] appendNoSync/HBASE-4528 doesn't take deferred log flush into account
[HBASE-6648] - [0.92 UNIT TESTS] TestMasterObserver.testRegionTransitionOperations fails occasionally
[HBASE-6649] - [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-1]
[HBASE-6662] - Region server incorrectly reports its own address as master's address
[HBASE-6663] - NPE race in HConnection if zookeeper is reset
[HBASE-6671] - Kerberos authenticated super user should be able to retrieve proxied delegation tokens
[HBASE-6679] - RegionServer aborts due to race between compaction and split
[HBASE-6685] - Thrift DemoClient.pl got NullPointerException
[HBASE-6686] - HFile Quarantine fails with missing dirs in hadoop 2.0
[HBASE-6688] - folder referred by thrift demo app instructions is outdated
[HBASE-6710] - 0.92/0.94 compatibility issues due to HBASE-5206
[HBASE-6711] - Avoid local results copy in StoreScanner
[HBASE-6713] - Stopping META/ROOT RS may take 50mins when some region is splitting
[HBASE-6714] - TestMultiSlaveReplication#testMultiSlaveReplication may fail
[HBASE-6734] - Code duplication in LoadIncrementalHFiles
[HBASE-6757] - Very inefficient behaviour of scan using FilterList
[HBASE-6762] - HBASE-6340 broke SecureRPCEngine
[HBASE-6769] - HRS.multi eats NoSuchColumnFamilyException since HBASE-5021
[HBASE-6784] - TestCoprocessorScanPolicy is sometimes flaky when run locally
[HBASE-6803] - script hbase should add JAVA_LIBRARY_PATH to LD_LIBRARY_PATH
[HBASE-6839] - Operations may be executed without holding rowLock
[HBASE-6842] - the jar used in coprocessor is not deleted in local which will exhaust the space of /tmp
[HBASE-6844] - upgrade 0.23 version dependency in 0.94
[HBASE-6847] - HBASE-6649 broke replication
[HBASE-6851] - Race condition in TableAuthManager.updateGlobalCache()
[HBASE-6853] - IllegalArgument Exception is thrown when an empty region is spliitted.
[HBASE-6854] - Deletion of SPLITTING node on split rollback should clear the region from RIT
[HBASE-6868] - Skip checksum is broke; are we double-checksumming by default?
[HBASE-6871] - HFileBlockIndex Write Error in HFile V2 due to incorrect split into intermediate index blocks
[HBASE-6888] - HBase scripts ignore any HBASE_OPTS set in the environment
[HBASE-6889] - Ignore source control files with apache-rat
[HBASE-6900] - RegionScanner.reseek() creates NPE when a flush or compaction happens before the reseek.
[HBASE-6901] - Store file compactSelection throws ArrayIndexOutOfBoundsException
[HBASE-6906] - TestHBaseFsck#testQuarantine* tests are flakey due to TableNotEnabledException
[HBASE-6912] - Filters are not properly applied in certain cases
[HBASE-6916] - HBA logs at info level errors that won't show in the shell
[HBASE-6920] - On timeout connecting to master, client can get stuck and never make progress
[HBASE-6927] - WrongFS using HRegionInfo.getTableDesc() and different fs for hbase.root and fs.defaultFS
[HBASE-6946] - JavaDoc missing from release tarballs
Improvement
[HBASE-3271] - Allow .META. table to be exported
[HBASE-5582] - "No HServerInfo found for" should be a WARNING message
[HBASE-5631] - hbck should handle case where .tableinfo file is missing.
[HBASE-5714] - Add write permissions check before any hbck run that modifies hdfs.
[HBASE-5728] - Methods Missing in HTableInterface
[HBASE-6286] - Upgrade maven-compiler-plugin to 2.5.1
[HBASE-6291] - Don't retry increments on an invalid cell
[HBASE-6308] - Coprocessors should be loaded in a custom ClassLoader to prevent dependency conflicts with HBase
[HBASE-6373] - Add more context information to audit log messages
[HBASE-6444] - Expose the ability to set custom HTTP Request Headers for the REST client used by RemoteHTable
[HBASE-6458] - new comparator twice in checkAndPut, just reuse the first one
[HBASE-6522] - Expose locks and leases to Coprocessors
[HBASE-6586] - Quarantine Corrupted HFiles with hbck
[HBASE-6643] - Accept encoded region name in compacting/spliting region from shell
[HBASE-6644] - HBaseAdmin.createTable should wait more till table is enabled.
[HBASE-6860] - [replication] HBASE-6550 is too aggressive, DDOSes .META.
[HBASE-6914] - Scans/Gets/Mutations don't give a good error if the table is disabled.
New Feature
[HBASE-6427] - Pluggable compaction and scan policies via coprocessors
[HBASE-6505] - Allow shared RegionObserver state
[HBASE-6550] - Refactoring ReplicationSink to make it more responsive of cluster health
Task
[HBASE-5042] - TestReadWriteConsistencyControl should be renamed
[HBASE-6288] - In hbase-daemons.sh, description of the default backup-master file path is wrong
[HBASE-6538] - Remove copy_table.rb script
Test
[HBASE-6507] - [hbck] TestHBaseFsck ran into TableNotEnabledException
[HBASE-6593] - TestAdmin times out sometimes
Release 0.94.1 - 7/24/2012
Sub-task
[HBASE-5342] - Grant/Revoke global permissions
[HBASE-5372] - Table mutation operations should check table level rights, not global rights
[HBASE-5385] - Delete table/column should delete stored permissions on -acl- table
[HBASE-5659] - TestAtomicOperation.testMultiRowMutationMultiThreads is still failing occasionally
[HBASE-6061] - Fix ACL "Admin" Table inconsistent permission check
[HBASE-6062] - preCheckAndPut/Delete() checks for READ when also a WRITE is performed
[HBASE-6092] - Authorize flush, split, compact operations in AccessController
[HBASE-6157] - Revoke of Global permission is not taking effect without restart.
[HBASE-6181] - TestStoreFile fails with jdk1.7
[HBASE-6188] - Remove the concept of table owner
[HBASE-6209] - ACL Corrections for AccessControllerProtocol apis
[HBASE-6224] - add Pre and Post coprocessor hooks for BulkLoad
[HBASE-6238] - Grant on META not taking effect
[HBASE-6252] - TABLE ADMIN should be allowed to relocate regions
[HBASE-6253] - Do not allow user to disable or drop ACL table
[HBASE-6292] - Compact can skip the security access control
[HBASE-6355] - Allow HBase to compile against JDK7
Bug
[HBASE-4379] - [hbck] Does not complain about tables with no end region [Z,]
[HBASE-4470] - ServerNotRunningException coming out of assignRootAndMeta kills the Master
[HBASE-4891] - HTable.ClientScanner needs to clone the Scan object
[HBASE-5546] - Master assigns region in the original region server when opening region failed
[HBASE-5722] - NPE in ZKUtil#getChildDataAndWatchForNewChildren when ZK not available or NW down.
[HBASE-5733] - AssignmentManager#processDeadServersAndRegionsInTransition can fail with NPE.
[HBASE-5741] - ImportTsv does not check for table existence
[HBASE-5757] - TableInputFormat should handle as many errors as possible
[HBASE-5806] - Handle split region related failures on master restart and RS restart
[HBASE-5840] - Open Region FAILED_OPEN doesn't clear the TaskMonitor Status, keeps showing the old status
[HBASE-5853] - java.lang.RuntimeException: readObject can't find class org.apache.hadoop.hdfs.protocol.HdfsFileStatus
[HBASE-5874] - When 'fs.default.name' not configured, the hbck tool and Merge tool throw IllegalArgumentException.
[HBASE-5875] - Process RIT and Master restart may remove an online server considering it as a dead server
[HBASE-5876] - TestImportExport has been failing against hadoop 0.23 profile
[HBASE-5883] - Backup master is going down due to connection refused exception
[HBASE-5894] - Table deletion failed but HBaseAdmin#deletetable reports it as success
[HBASE-5902] - Some scripts are not executable
[HBASE-5909] - SlabStats should be a daemon thread
[HBASE-5916] - RS restart just before master intialization we make the cluster non operative
[HBASE-5918] - Master will block forever at startup if root server dies between assigning root and assigning meta
[HBASE-5922] - HalfStoreFileReader seekBefore causes StackOverflowError
[HBASE-5927] - SSH and DisableTableHandler happening together does not clear the znode of the region and RIT map.
[HBASE-5928] - Hbck shouldn't npe when there are no tables.
[HBASE-5955] - Guava 11 drops MapEvictionListener and Hadoop 2.0.0-alpha requires it
[HBASE-5963] - ClassCastException: FileSystem$Cache$ClientFinalizer cannot be cast to Thread
[HBASE-5964] - HFileSystem: "No FileSystem for scheme: hdfs"
[HBASE-5966] - MapReduce based tests broken on Hadoop 2.0.0-alpha
[HBASE-5975] - Failed suppression of fs shutdown hook with Hadoop 2.0.0
[HBASE-5986] - Clients can see holes in the META table when regions are being split
[HBASE-6002] - Possible chance of resource leak in HlogSplitter
[HBASE-6011] - Unable to start master in local mode
[HBASE-6016] - ServerShutdownHandler#processDeadRegion could return false for disabling table regions
[HBASE-6018] - hbck fails with a RejectedExecutionException when >50 regions present
[HBASE-6021] - NullPointerException when running LoadTestTool without specifying compression type
[HBASE-6029] - HBCK doesn't recover Balance switch if exception occurs in onlineHbck()
[HBASE-6046] - Master retry on ZK session expiry causes inconsistent region assignments.
[HBASE-6047] - Put.has() can't determine result correctly
[HBASE-6049] - Serializing "List" containing null elements will cause NullPointerException in HbaseObjectWritable.writeObject()
[HBASE-6050] - HLogSplitter renaming recovered.edits and CJ removing the parent directory race, making the HBCK think cluster is inconsistent.
[HBASE-6056] - Restore hbase-default version check
[HBASE-6065] - Log for flush would append a non-sequential edit in the hlog, leading to possible data loss
[HBASE-6068] - Secure HBase cluster : Client not able to call some admin APIs
[HBASE-6069] - TableInputFormatBase#createRecordReader() doesn't initialize TableRecordReader which causes NPE
[HBASE-6070] - AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[HBASE-6088] - Region splitting not happened for long time due to ZK exception while creating RS_ZK_SPLITTING node
[HBASE-6089] - SSH and AM.joinCluster causes Concurrent Modification exception.
[HBASE-6095] - ActiveMasterManager NullPointerException
[HBASE-6115] - NullPointerException is thrown when root and meta table regions are assigning to another RS.
[HBASE-6122] - Backup master does not become Active master after ZK exception
[HBASE-6126] - Fix broke TestLocalHBaseCluster in 0.92/0.94
[HBASE-6133] - TestRestartCluster failing in 0.92
[HBASE-6141] - InterfaceAudience breaks 0.94 on older versions of hadoop
[HBASE-6146] - Disabling of Catalog tables should not be allowed
[HBASE-6158] - Data loss if the words 'merges' or 'splits' are used as Column Family name
[HBASE-6160] - META entries from daughters can be deleted before parent entries
[HBASE-6164] - Correct the bug in block encoding usage in bulkload
[HBASE-6185] - Update javadoc for ConstantSizeRegionSplitPolicy class
[HBASE-6195] - Increment data will be lost when the memstore is flushed
[HBASE-6200] - KeyComparator.compareWithoutRow can be wrong when families have the same prefix
[HBASE-6210] - Backport HBASE-6197 to 0.94
[HBASE-6227] - SSH and cluster startup causes data loss
[HBASE-6229] - AM.assign() should not set table state to ENABLED directly.
[HBASE-6236] - Offline meta repair fails if the HBase base mount point is on a different cluster/volume than its parent in a ViewFS or similar FS
[HBASE-6237] - Fix race on ACL table creation in TestTablePermissions
[HBASE-6240] - Race in HCM.getMaster stalls clients
[HBASE-6246] - Admin.move without specifying destination does not go through AccessController
[HBASE-6248] - Jetty init may fail if directory name contains "master"
[HBASE-6265] - Calling getTimestamp() on a KV in cp.prePut() causes KV not to be flushed
[HBASE-6269] - Lazyseek should use the maxSequenseId StoreFile's KeyValue as the latest KeyValue
[HBASE-6281] - Assignment need not be called for disabling table regions during clean cluster start up.
[HBASE-6284] - Introduce HRegion#doMiniBatchMutation()
[HBASE-6293] - HMaster does not go down while splitting logs even if explicit shutdown is called.
[HBASE-6303] - HCD.setCompressionType should use Enum support for storing compression types as strings
[HBASE-6311] - Data error after majorCompaction caused by keeping MVCC for opened scanners
[HBASE-6313] - Client hangs because the client is not notified
[HBASE-6319] - ReplicationSource can call terminate on itself and deadlock
[HBASE-6325] - [replication] Race in ReplicationSourceManager.init can initiate a failover even if the node is alive
[HBASE-6326] - Avoid nested retry loops in HConnectionManager
[HBASE-6328] - FSHDFSUtils#recoverFileLease tries to rethrow InterruptedException but actually shallows it
[HBASE-6329] - Stopping META regionserver when splitting region could cause daughter region to be assigned twice
[HBASE-6337] - [MTTR] Remove renaming tmp log file in SplitLogManager
[HBASE-6357] - Failed distributed log splitting stuck on master web UI
[HBASE-6369] - HTable is not closed in AggregationClient
[HBASE-6375] - Master may be using a stale list of region servers for creating assignment plan during startup
[HBASE-6377] - HBASE-5533 metrics miss all operations submitted via MultiAction
[HBASE-6380] - bulkload should update the store.storeSize
[HBASE-6392] - UnknownRegionException blocks hbck from sideline big overlap regions
[HBASE-6394] - verifyrep MR job map tasks throws NullPointerException
[HBASE-6397] - [hbck] print out bulk load commands for sidelined regions if necessary
[HBASE-6406] - TestReplicationPeer.testResetZooKeeperSession and TestZooKeeper.testClientSessionExpired fail frequently
[HBASE-6420] - Gracefully shutdown logsyncer
[HBASE-6426] - Add Hadoop 2.0.x profile to 0.92+
[HBASE-6440] - SplitLogManager - log the exception when failed to finish split log file
[HBASE-6443] - HLogSplitter should ignore 0 length files
[HBASE-6445] - rat check fails if hs_err_pid26514.log dropped in tests
Improvement
[HBASE-4720] - Implement atomic update operations (checkAndPut, checkAndDelete) for REST client/server
[HBASE-5360] - [uberhbck] Add options for how to handle offline split parents.
[HBASE-5630] - hbck should disable the balancer using synchronousBalanceSwitch.
[HBASE-5802] - Change the default metrics class to NullContextWithUpdateThread
[HBASE-5838] - Add an LZ4 compression option to HFile
[HBASE-5887] - Make TestAcidGuarantees usable for system testing.
[HBASE-5892] - [hbck] Refactor parallel WorkItem* to Futures.
[HBASE-5913] - Speed up the full scan of META
[HBASE-5973] - Add ability for potentially long-running IPC calls to abort if client disconnects
[HBASE-6010] - Security audit logger configuration for log4j
[HBASE-6013] - Polish sharp edges from CopyTable
[HBASE-6022] - Include Junit in the libs when packaging so that TestAcidGaurntee can run
[HBASE-6023] - Normalize security audit logging level with Hadoop
[HBASE-6040] - Use block encoding and HBase handled checksum verification in bulk loading using HFileOutputFormat
[HBASE-6067] - HBase won't start when hbase.rootdir uses ViewFileSystem
[HBASE-6114] - CacheControl flags should be tunable per table schema per CF
[HBASE-6124] - Backport HBASE-6033 to 0.90, 0.92 and 0.94
[HBASE-6161] - Log Error when thrift server fails to start up.
[HBASE-6173] - hbck check specified tables only
[HBASE-6207] - Add jitter to client retry timer
[HBASE-6214] - Backport HBASE-5998 to 94.1
[HBASE-6244] - [REST] Result generators do not need to query table schema
[HBASE-6247] - [REST] HTablePool.putTable is deprecated
[HBASE-6267] - hbase.store.delete.expired.storefile should be true by default
[HBASE-6283] - [region_mover.rb] Add option to exclude list of hosts on unload instead of just assuming the source node.
[HBASE-6314] - Fast fail behavior for unauthenticated user
[HBASE-6332] - Improve POM for better integration with downstream ivy projects
[HBASE-6334] - TestImprovement for TestHRegion.testWritesWhileGetting
[HBASE-6341] - Publicly expose HConnectionKey
[HBASE-6363] - HBaseConfiguration can carry a main method that dumps XML output for debug purposes
[HBASE-6382] - Upgrade Jersey to 1.8 to match Hadoop 1 and 2
[HBASE-6384] - hbck should group together those sidelined regions need to be bulk loaded later
[HBASE-6433] - Improve HBaseServer#getRemoteAddress by utilizing HBaseServer.Connection.hostAddress
New Feature
[HBASE-2730] - Expose RS work queue contents on web UI
[HBASE-4956] - Control direct memory buffer consumption by HBaseClient
[HBASE-5609] - Add the ability to pass additional information for slow query logging
[HBASE-5886] - Add new metric for possible data loss due to puts without WAL
[HBASE-6044] - copytable: remove rs.* parameters
Task
[HBASE-6001] - Upgrade slf4j to 1.6.1
[HBASE-6034] - Upgrade Hadoop dependencies
[HBASE-6077] - Document the most common secure RPC troubleshooting resolutions
[HBASE-6129] - Backport of Add Increment Coalescing in thrift.
[HBASE-6131] - Add attribution for code added by HBASE-5533 metrics
Test
[HBASE-5985] - TestMetaMigrationRemovingHTD failed with HADOOP 2.0.0
Release 0.94.0 - 5/1/2012
Sub-task
[HBASE-4343] - Get the TestAcidGuarantee unit test to fail consistently
[HBASE-4345] - Ensure that Scanners that read from the storefiles respect MVCC
[HBASE-4346] - Optimise the storage that we use for storing MVCC information.
[HBASE-4485] - Eliminate window of missing Data
[HBASE-4517] - Document new replication features in 0.92
[HBASE-4544] - Rename RWCC to MVCC
[HBASE-4594] - Ensure that KV's newer than the oldest-living-scanner is not accounted for the maxVersions during flush/compaction.
[HBASE-4661] - Ability to export the list of files for a some or all column families for a given region
[HBASE-4682] - Support deleted rows using Import/Export
[HBASE-4908] - HBase cluster test tool (port from 0.89-fb)
[HBASE-4911] - Clean shutdown
[HBASE-4979] - Setting KEEP_DELETE_CELLS fails in shell
[HBASE-4981] - add raw scan support to shell
[HBASE-4998] - Support deleted rows in CopyTable
[HBASE-5005] - Add DEFAULT_MIN_VERSIONS to HColumnDescriptor.DEFAULT_VALUES
[HBASE-5058] - Allow HBaseAdmin to use an existing connection
[HBASE-5096] - Replication does not handle deletes correctly.
[HBASE-5118] - Fix Scan documentation
[HBASE-5143] - Fix config typo in pluggable load balancer factory
[HBASE-5203] - Group atomic put/delete operation into a single WALEdit to handle region server failures.
[HBASE-5266] - Add documentation for ColumnRangeFilter
[HBASE-5346] - Fix testColumnFamilyCompression and test_TIMERANGE in TestHFileOutputFormat
[HBASE-5368] - Move PrefixSplitKeyPolicy out of the src/test into src, so it is accessible in HBase installs
[HBASE-5371] - Introduce AccessControllerProtocol.checkPermissions(Permission[] permissons) API
[HBASE-5413] - Rename RowMutation to RowMutations
[HBASE-5431] - Improve delete marker handling in Import M/R jobs
[HBASE-5460] - Add protobuf as M/R dependency jar
[HBASE-5497] - Add protobuf as M/R dependency jar (mapred)
[HBASE-5523] - Fix Delete Timerange logic for KEEP_DELETED_CELLS
[HBASE-5541] - Avoid holding the rowlock during HLog sync in HRegion.mutateRowWithLocks
[HBASE-5638] - Backport to 0.90 and 0.92 - NPE reading ZK config in HBase
[HBASE-5641] - decayingSampleTick1 prevents HBase from shutting down.
[HBASE-5793] - TestHBaseFsck#TestNoHdfsTable test hangs after client retries increased
Bug
[HBASE-2856] - TestAcidGuarantee broken on trunk
[HBASE-3443] - ICV optimization to look in memstore first and then store files (HBASE-3082) does not work when deletes are in the mix
[HBASE-3690] - Option to Exclude Bulk Import Files from Minor Compaction
[HBASE-3987] - Fix a NullPointerException on a failure to load Bloom filter data
[HBASE-4065] - TableOutputFormat ignores failure to create table instance
[HBASE-4078] - Silent Data Offlining During HDFS Flakiness
[HBASE-4105] - Stargate does not support Content-Type: application/json and Content-Encoding: gzip in parallel
[HBASE-4116] - [stargate] StringIndexOutOfBoundsException in row spec parse
[HBASE-4326] - Tests that use HBaseTestingUtility.startMiniCluster(n) should shutdown with HBaseTestingUtility.shutdownMiniCluster.
[HBASE-4397] - -ROOT-, .META. tables stay offline for too long in recovery phase after all RSs are shutdown at the same time
[HBASE-4398] - If HRegionPartitioner is used in MapReduce, client side configurations are overwritten by hbase-site.xml.
[HBASE-4476] - Compactions must fail if column tracker gets columns out of order
[HBASE-4496] - HFile V2 does not honor setCacheBlocks when scanning.
[HBASE-4607] - Split log worker should terminate properly when waiting for znode
[HBASE-4609] - ThriftServer.getRegionInfo() is expecting old ServerName format, need to use new Addressing class instead
[HBASE-4610] - Port HBASE-3380 (Master failover can split logs of live servers) to 92/trunk (definitely bring in config params, decide if we need to do more to fix the bug)
[HBASE-4626] - Filters unnecessarily copy byte arrays...
[HBASE-4645] - Edits Log recovery losing data across column families
[HBASE-4648] - Bytes.toBigDecimal() doesn't use offset
[HBASE-4658] - Put attributes are not exposed via the ThriftServer
[HBASE-4673] - NPE in HFileReaderV2.close during major compaction when hfile.block.cache.size is set to 0
[HBASE-4679] - Thrift null mutation error
[HBASE-4691] - Remove more unnecessary byte[] copies from KeyValues
[HBASE-4729] - Clash between region unassign and splitting kills the master
[HBASE-4745] - LRU Statistics thread should be daemon
[HBASE-4769] - Abort RegionServer Immediately on OOME
[HBASE-4776] - HLog.closed should be checked inside of updateLock
[HBASE-4778] - Don't ignore corrupt StoreFiles when opening a region
[HBASE-4790] - Occasional TestDistributedLogSplitting failure
[HBASE-4792] - SplitRegionHandler doesn't care if it deletes the znode or not, leaves the parent region stuck offline
[HBASE-4795] - Fix TestHFileBlock when running on a 32-bit JVM
[HBASE-4797] - [availability] Skip recovered.edits files with edits we know older than what region currently has
[HBASE-4805] - Allow better control of resource consumption in HTable
[HBASE-4819] - TestShell broke in trunk; typo
[HBASE-4825] - TestRegionServersMetrics and TestZKLeaderManager are not categorized (small/medium/large)
[HBASE-4826] - Modify hbasetests.sh to take into account the new pom.xml with surefire
[HBASE-4832] - TestRegionServerCoprocessorExceptionWithAbort fails if the region server stops too fast
[HBASE-4853] - HBASE-4789 does overzealous pruning of seqids
[HBASE-4874] - Run tests with non-secure random, some tests hang otherwise
[HBASE-4878] - Master crash when splitting hlog may cause data loss
[HBASE-4886] - truncate fails in HBase shell
[HBASE-4890] - fix possible NPE in HConnectionManager
[HBASE-4932] - Block cache can be mistakenly instantiated by tools
[HBASE-4936] - Cached HRegionInterface connections crash when getting UnknownHost exceptions
[HBASE-4937] - Error in Quick Start Shell Exercises
[HBASE-4942] - HMaster is unable to start of HFile V1 is used
[HBASE-4946] - HTable.coprocessorExec (and possibly coprocessorProxy) does not work with dynamically loaded coprocessors (from hdfs or local system), because the RPC system tries to deserialize an unknown class.
[HBASE-4993] - Performance regression in minicluster creation
[HBASE-5003] - If the master is started with a wrong root dir, it gets stuck and can't be killed
[HBASE-5010] - Filter HFiles based on TTL
[HBASE-5015] - Remove some leaks in tests due to lack of HTable.close()
[HBASE-5026] - Add coprocessor hook to HRegionServer.ScannerListener.leaseExpired()
[HBASE-5027] - HConnection.create(final Connection conf) does not clone, it creates a new Configuration reading *.xmls and then does a merge.
[HBASE-5038] - Some tests leak connections
[HBASE-5041] - Major compaction on non existing table does not throw error
[HBASE-5051] - HBaseTestingUtility#getHBaseAdmin() creates a new HBaseAdmin instance at each call
[HBASE-5053] - HCM Tests leak connections
[HBASE-5055] - Build against hadoop 0.22 broken
[HBASE-5068] - RC1 can not build its hadoop-0.23 profile
[HBASE-5085] - fix test-patch script from setting the ulimit
[HBASE-5088] - A concurrency issue on SoftValueSortedMap
[HBASE-5091] - [replication] Update replication doc to reflect current znode structure
[HBASE-5097] - RegionObserver implementation whose preScannerOpen and postScannerOpen Impl return null can stall the system initialization through NPE
[HBASE-5099] - ZK event thread waiting for root region assignment may block server shutdown handler for the region sever the root region was on
[HBASE-5100] - Rollback of split could cause closed region to be opened again
[HBASE-5103] - Fix improper master znode deserialization
[HBASE-5120] - Timeout monitor races with table disable handler
[HBASE-5121] - MajorCompaction may affect scan's correctness
[HBASE-5141] - Memory leak in MonitoredRPCHandlerImpl
[HBASE-5152] - Region is on service before completing initialization when doing rollback of split, it will affect read correctness
[HBASE-5163] - TestLogRolling#testLogRollOnDatanodeDeath fails sometimes on Jenkins or hadoop QA ("The directory is already locked.")
[HBASE-5172] - HTableInterface should extend java.io.Closeable
[HBASE-5176] - AssignmentManager#getRegion: logging nit adds a redundant '+'
[HBASE-5182] - TBoundedThreadPoolServer threadKeepAliveTimeSec is not configured properly
[HBASE-5195] - [Coprocessors] preGet hook does not allow overriding or wrapping filter on incoming Get
[HBASE-5196] - Failure in region split after PONR could cause region hole
[HBASE-5200] - AM.ProcessRegionInTransition() and AM.handleRegion() race thus leaving the region assignment inconsistent
[HBASE-5206] - Port HBASE-5155 to 0.92, 0.94, and TRUNK
[HBASE-5212] - Fix test TestTableMapReduce against 0.23.
[HBASE-5213] - "hbase master stop" does not bring down backup masters
[HBASE-5221] - bin/hbase script doesn't look for Hadoop jars in the right place in trunk layout
[HBASE-5228] - [REST] Rip out "transform" feature
[HBASE-5267] - Add a configuration to disable the slab cache by default
[HBASE-5271] - Result.getValue and Result.getColumnLatest return the wrong column.
[HBASE-5278] - HBase shell script refers to removed "migrate" functionality
[HBASE-5281] - Should a failure in creating an unassigned node abort the master?
[HBASE-5282] - Possible file handle leak with truncated HLog file.
[HBASE-5283] - Request counters may become negative for heavily loaded regions
[HBASE-5286] - bin/hbase's logic of adding Hadoop jar files to the classpath is fragile when presented with split packaged Hadoop 0.23 installation
[HBASE-5288] - Security source code dirs missing from 0.92.0 release tarballs.
[HBASE-5290] - [FindBugs] Synchronization on boxed primitive
[HBASE-5292] - getsize per-CF metric incorrectly counts compaction related reads as well
[HBASE-5317] - Fix TestHFileOutputFormat to work against hadoop 0.23
[HBASE-5327] - Print a message when an invalid hbase.rootdir is passed
[HBASE-5331] - Off by one bug in util.HMerge
[HBASE-5345] - CheckAndPut doesn't work when value is empty byte[]
[HBASE-5348] - Constraint configuration loaded with bloat
[HBASE-5350] - Fix jamon generated package names
[HBASE-5351] - hbase completebulkload to a new table fails in a race
[HBASE-5364] - Fix source files missing licenses in 0.92 and trunk
[HBASE-5384] - Up heap used by hadoopqa
[HBASE-5387] - Reuse compression streams in HFileBlock.Writer
[HBASE-5398] - HBase shell disable_all/enable_all/drop_all promp wrong tables for confirmation
[HBASE-5415] - FSTableDescriptors should handle random folders in hbase.root.dir better
[HBASE-5420] - TestImportTsv does not shut down MR Cluster correctly (fails against 0.23 hadoop)
[HBASE-5423] - Regionserver may block forever on waitOnAllRegionsToClose when aborting
[HBASE-5425] - Punt on the timeout doesn't work in BulkEnabler#waitUntilDone (master's EnableTableHandler)
[HBASE-5437] - HRegionThriftServer does not start because of a bug in HbaseHandlerMetricsProxy
[HBASE-5466] - Opening a table also opens the metatable and never closes it.
[HBASE-5470] - Make DataBlockEncodingTool work correctly with no native compression codecs loaded
[HBASE-5473] - Metrics does not push pread time
[HBASE-5477] - Cannot build RPM for hbase-0.92.0
[HBASE-5480] - Fixups to MultithreadedTableMapper for Hadoop 0.23.2+
[HBASE-5481] - Uncaught UnknownHostException prevents HBase from starting
[HBASE-5484] - Spelling mistake in error message in HMasterCommandLine
[HBASE-5485] - LogCleaner refers to non-existant SnapshotLogCleaner
[HBASE-5488] - OfflineMetaRepair doesn't support hadoop 0.20's fs.default.name property
[HBASE-5499] - dev-support/test-patch.sh does not have execute perms
[HBASE-5502] - region_mover.rb fails to load regions back to original server for regions only containing empty tables.
[HBASE-5507] - ThriftServerRunner.HbaseHandler.getRegionInfo() and getTableRegions() do not use ByteBuffer correctly
[HBASE-5514] - Compile against hadoop 0.24-SNAPSHOT
[HBASE-5522] - hbase 0.92 test artifacts are missing from Maven central
[HBASE-5524] - Add a couple of more filters to our rat exclusion set
[HBASE-5529] - MR test failures becuase MALLOC_ARENA_MAX is not set
[HBASE-5531] - Maven hadoop profile (version 23) needs to be updated with latest 23 snapshot
[HBASE-5535] - Make the functions in task monitor synchronized
[HBASE-5537] - MXBean shouldn't have a dependence on InterfaceStability until 0.96
[HBASE-5545] - region can't be opened for a long time. Because the creating File failed.
[HBASE-5552] - Clean up our jmx view; its a bit of a mess
[HBASE-5562] - test-patch.sh reports a javadoc warning when there are no new javadoc warnings
[HBASE-5563] - HRegionInfo#compareTo should compare regionId as well
[HBASE-5567] - test-patch.sh has logic error in findbugs check
[HBASE-5568] - Multi concurrent flushcache() for one region could cause data loss
[HBASE-5569] - Do not collect deleted KVs when they are still in use by a scanner.
[HBASE-5574] - DEFAULT_MAX_FILE_SIZE defaults to a negative value
[HBASE-5579] - A Delete Version could mask other values
[HBASE-5581] - Creating a table with invalid syntax does not give an error message when it fails
[HBASE-5586] - [replication] NPE in ReplicationSource when creating a stream to an inexistent cluster
[HBASE-5596] - Few minor bugs from HBASE-5209
[HBASE-5597] - Findbugs check in test-patch.sh always fails
[HBASE-5603] - rolling-restart.sh script hangs when attempting to detect expiration of /hbase/master znode.
[HBASE-5606] - SplitLogManger async delete node hangs log splitting when ZK connection is lost
[HBASE-5611] - Replayed edits from regions that failed to open during recovery aren't removed from the global MemStore size
[HBASE-5613] - ThriftServer getTableRegions does not return serverName and port
[HBASE-5623] - Race condition when rolling the HLog and hlogFlush
[HBASE-5624] - Aborting regionserver when splitting region, may cause daughter region not assigned by ServerShutdownHandler.
[HBASE-5633] - NPE reading ZK config in HBase
[HBASE-5635] - If getTaskList() returns null, splitlogWorker would go down and it won't serve any requests
[HBASE-5636] - TestTableMapReduce doesn't work properly.
[HBASE-5639] - The logic used in waiting for region servers during startup is broken
[HBASE-5656] - LoadIncrementalHFiles createTable should detect and set compression algorithm
[HBASE-5663] - MultithreadedTableMapper doesn't work.
[HBASE-5665] - Repeated split causes HRegionServer failures and breaks table
[HBASE-5669] - AggregationClient fails validation for open stoprow scan